<?php
/* 
 * Copyright (c) 2011 Antoine d'Otreppe de Bouvette
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 * IN THE SOFTWARE.
 */

class DateTimeWidget implements Widget {
    private $dateFormat;
    private $timeFormat;
    private $at;
    
    public function __construct($dateFormat, $timeFormat, $at='@') {
        $this->dateFormat = $dateFormat;
        $this->timeFormat = $timeFormat;
        $this->at = $at;
    }
    
    public function interpretInput($input) {
        $format = $this->dateFormat . ' ' . $this->timeFormat;
        $value = $input['date'] . ' ' . $input['time'];
        return DateTime::createFromFormat($format, $value);
    }
    
    public function toHtml($name, $value, $id) {
        return sprintf('<input type="text" name="%s[date]" data-dateformat="%s" '.
                'value="%s"%s/> %s <input type="text" name="%s[time]" '.
                'value="%s"%s',
                $name,
                htmlspecialchars($this->dateFormat),
                $value !== null ? $value->format($this->dateFormat) : '',
                $id !== null ? ' id="'.$id.'-date"' : '',
                $this->at,
                $name,
                $value !== null ? $value->format($this->timeFormat) : '',
                $id !== null ? ' id="'.$id.'-time"' : '');
    }
}